<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.11"></script>
</head>

<body>
    <div id="app">
        <!-- 如果属性名中带- 则这个属性名要加引号 如font-weight -->
        <h1 :style="{color:'red', 'font-weight':200}">我是一个H1</h1>
        <h1 :style="styleObj1">我是一个H1</h1>
        <h1 :style="[styleObj1,styleObj2]">我是一个H1</h1>
    </div>
    <script>
        var vm = new Vue({
            el: '#app',
            data: {
                styleObj1:{color:'red', 'font-weight':200},
                styleObj2:{'font-style':'italic'}
            },
            methods: {}
        });
    </script>
</body>

</html>